Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 386 [Rate centres in NPA 386] [Dial plan for NPA 386]

NXX: 374

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
386-374 A Oak Hill FL DYBHFLPOXTX  515J IP HORIZON LLC 45601   2024-07-14   
386-374 0 Oak Hill FL   515J IP HORIZON LLC 45601   2025-05-17   
386-374 1 Oak Hill FL DYBHFLPOXTX  515J IP HORIZON LLC 45601   2024-07-14   
386-374 2 Oak Hill FL DYBHFLPOXTX  515J IP HORIZON LLC 45601   2024-07-14   
386-374 8 Oak Hill FL   515J IP HORIZON LLC 45601   2025-05-17   

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.